Well it is an auto 01 tib. When around 3k it seems as the engine gets really rough and creates enough vibration to vibrate the passenger side door. I was wondering if this is normal. The car doesn't miss nor does the trans slip or anything when this happens. At is only at 3K and a little above but then it goes away once it passes about 3200rpm. I changed the plugs recently and oil. Air filter is still good. I have no idea what could be causing this. I wonder if its the trans because sometimes when I turn on the car it whines really loud for a min. Any input pleeze!!!!!!!!!!!!!!!!